Technical specifications of the LCD: According to the product structure, performance and cost requirements of the LCD projector, the liquid crystal panel has different size specifications. The size of the LCD panel determines the size of the projector. The smaller the size of the LCD panel, the smaller the projector's optical system can be, and thus the smaller the projector. However, achieving high resolution on a small LCD and maintaining high brightness is difficult to imagine. The current 0.9-inch and 0.7-inch panel production is the largest, the proportion of more than 70%, 1.3-inch product ratio is about 15%, 0.5-inch, 0.79-inch, 0.99-inch and 1.0-inch panel has also begun to use for projector products. In terms of the number of liquid crystal panels, due to defects in performance and color of the monolithic structure, it has basically been eliminated. The mainstream is a 3-chip LCD projector. Due to its excellent performance and color, it represents the most mature level of projector product development for a long period of time. With the same brightness and resolution, the smaller the volume of the projector, the higher the price. DLP's technical specifications: As with LCD technology, DMD chip size is an important factor in determining the size and weight of the projector, Texas Instruments has also introduced a variety of 0.55-inch, 0.7-inch, 0.9-inch and 1.1-inch chip size. The most common structures of DLP projectors are monolithic and 3-chip. Among them, the 3-chip architecture is mainly used in theater systems and high-performance products. The common applications in the market are all monolithic structures. The commonly discussed comparison of DLP technology and LCD technology is also mainly based on a comparison between monolithic DLP technology and 3-chip LCD technology. The monolithic DLP projector uses a color wheel to realize color separation, and 3 primary colors use the same imaging unit. Compared to a 3-chip LCD projector in which three primary colors each have an imaging system, the monolithic DLP projector has color saturation. Always worse than 3 LCD projectors. The color wheel speed of the first generation DLP projector is 60Hz, the color wheel speed of the second generation DLP product is doubled to 120Hz, the color wheel speed of the new generation of DLP projector is still 120Hz, but the color wheel uses 6 Separation (previously using 3 color separations) is equivalent to doubling the rotational speed to 240 Hz. Therefore, the color performance of current DLP projectors has been greatly improved, but compared with LCD products, most of the single There is still a gap in the color performance of the DLP projector products.